A .50 caliber rifle is legal in California only in one narrow situation: you lawfully owned a .50 BMG rifle before January 1, 2005, and registered it with the California Department of Justice by April 30, 2006. Outside that grandfathered group, .50 BMG rifles cannot be bought, sold, manufactured, imported, lent, or given away in the state, and new residents cannot bring one with them when they move.
Which .50 Caliber Rifles the Ban Covers
The restrictions target one specific category. Under Penal Code section 30530, a “.50 BMG rifle” is a center-fire rifle capable of firing a .50 BMG cartridge that isn’t already classified as an assault weapon or machinegun under other California statutes.1California Legislative Information. California Penal Code 30530 Antique firearms, curios, and relics as defined by federal regulations are excluded.
That definition matters because “50 cal” is a loose label. A .50 caliber rifle that doesn’t fire the BMG cartridge is not swept up by these particular rules, though other California firearms laws may still apply to it. If your rifle chambers the .50 BMG round, everything below is relevant to you.
What the Ban Prohibits
The .50 Caliber BMG Regulation Act took effect on January 1, 2005, and extended California’s assault weapon framework to these rifles. Under Penal Code section 30600, it is illegal to manufacture, import, sell, distribute, give, or lend a .50 BMG rifle in California.2California Legislative Information. California Penal Code 30600
No dealer can sell you one. You cannot buy one from a private party. You cannot lend yours to a friend at the range or hand one down to a family member as a gift. The prohibitions are comprehensive, and the only legal path to possession is the registration that closed in 2006.
Moving to California From Another State
If you legally own a .50 BMG rifle elsewhere and are relocating to California, you cannot bring it. The DOJ states that importing assault weapons or .50 BMG rifles into California is unlawful, and there is no new-resident exception.3California Department of Justice. Firearms Information for New California Residents Sell it before the move, transfer it to someone out of state, or arrange storage outside California. Crossing the state line with the rifle is a felony under section 30600, regardless of how lawfully you acquired it in another state.
The Registration Window Is Closed
California gave existing owners a one-time chance to register. To qualify, you had to lawfully possess the .50 BMG rifle before January 1, 2005, and submit your registration to the DOJ no later than April 30, 2006.4California Department of Justice. Assault Weapons and .50 BMG Frequently Asked Questions That window is permanently closed. There is no late filing, no reopening, and no alternative registration process.
If you already registered before the deadline, the DOJ issued a confirmation for each approved submission. Keep it as proof of lawful possession. If you didn’t register in time, no rifle you now hold can be brought into legal status.
What a Registered Owner Can Actually Do
Registration is not a general permission slip. Penal Code section 30945 limits possession of a registered .50 BMG rifle to specific places:5California Legislative Information. California Penal Code 30945
- Your residence, place of business, or other property you own, or property owned by someone else with their express permission.
- Target ranges operated by public or private shooting clubs, commercially licensed ranges, and shooting clubs licensed under the Fish and Game Code.
- Firearms exhibitions or displays sponsored by or approved by a law enforcement agency or a recognized firearms education entity.
- Public land where the managing agency specifically permits possession and use.
- In transit between any of the above, or to a licensed dealer for servicing or repair.
Anywhere outside these categories is off limits, even with a valid registration. Use at a location that doesn’t fit the list requires a separate DOJ permit under Penal Code section 31000.
Transporting the Rifle
When moving a registered .50 BMG rifle between permitted locations, the rifle must be unloaded and stored in a locked container. Under Penal Code section 16850, a locked container is a fully enclosed, secure container fastened with a padlock, key lock, combination lock, or similar device. The trunk of your car counts. The glove compartment and utility compartment do not.6California Department of Justice. Transporting Firearms in California A rifle in the back seat, or in an unlocked case, violates the rule and puts your registration status at risk on top of the criminal exposure.
Inheritance
A registered .50 BMG rifle cannot be inherited and kept the way ordinary property can. If you obtain title through a will or intestate succession, Penal Code sections 30915 and 30935 give you 180 days to do one of four things:4California Department of Justice. Assault Weapons and .50 BMG Frequently Asked Questions
- Render it permanently inoperable.
- Sell it to a licensed dealer who holds a DOJ permit to purchase assault weapons and .50 BMG rifles.
- Obtain a DOJ permit to possess assault weapons and .50 BMG rifles under Penal Code sections 32650 through 32670.
- Remove it from California.
The 180-day clock is strict, and missing it converts continued possession into a criminal offense. Selling to a permitted dealer or moving the rifle out of state are the most workable options for most heirs. The DOJ possession permit exists but is designed largely for law enforcement and similar entities, so private individuals rarely qualify.
Narrow Exemptions
A limited set of exemptions covers certain government roles. Specified peace officers may possess .50 BMG rifles with written authorization from the head of their employing agency under Penal Code sections 30625 and 30630.4California Department of Justice. Assault Weapons and .50 BMG Frequently Asked Questions Active-duty military members permanently stationed in California can obtain a Military Assault Weapon Permit for military-sanctioned activities with express permission from their base commander. Licensed dealers who hold a Dangerous Weapons Permit can handle these rifles for defined purposes such as buying from registered owners or shipping to manufacturers for repair. None of these open a route for ordinary civilian acquisition.
Penalties
Unlawful Possession
Possessing a .50 BMG rifle without a valid registration is punishable by up to one year in county jail, or by a longer term in county jail under the state’s realignment sentencing structure.7California Legislative Information. California Penal Code 30605
Manufacturing, Selling, Lending, or Importing
Making, importing, selling, distributing, giving, or lending a .50 BMG rifle is a straight felony carrying four, six, or eight years in county jail under section 30600. If the recipient is a minor, an additional consecutive one-year enhancement applies. Each rifle counts as a separate offense, so lending two rifles produces two felony charges.
Downstream Consequences
A felony conviction under these statutes triggers a lifetime firearm ban under both California and federal law, and creates lasting obstacles for employment, professional licensing, and housing. Those effects often outlast the sentence itself.